Article: A combined technique of photo-doping and MOCVD for the development of heterogeneous photo-Fenton catalyst

File Download

No File Attached
The HKU Scholars Hub has contact details for these author(s).
- Dr Lam, Leung-yuk Frank
- Professor Chan, Godwin Kwong Yu

Links for fulltext
(May Require Subscription)

Publisher Website: 10.1016/j.seppur.2009.03.010
Scopus: eid_2-s2.0-67349136102

Supplementary

Citations:
- Scopus:
- Web of Science:
- PubMed Central:
Item Statistics (The Hub)
Appears in Collections:
- Chemistry: Journal/Magazine Articles

Title	A combined technique of photo-doping and MOCVD for the development of heterogeneous photo-Fenton catalyst
Authors	Lam, FLY3 Hu, X3 Lee, TMH2 Chan, KY1
Keywords	Composites Environment Photo-Fenton catalysts Porous media Remediation
Issue Date	2009
Publisher	Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/seppur
Citation	Separation And Purification Technology, 2009, v. 67 n. 2, p. 233-237 [How to Cite?] DOI: http://dx.doi.org/10.1016/j.seppur.2009.03.010
Abstract	A novel technique combining photo-doping and metal-organic chemical vapor deposition (MOCVD) is used to synthesize heterogeneous iron (Fe) catalyst supported on TiO2/SiO2 substrate. The TiO2/SiO2 substrate is obtained through MOCVD method to disperse TiO2 onto silica gel and then iron is coated onto the substrate by photo-doping. The developed catalyst, Fe/TiO2/SiO2, is characterized by various techniques, including ICP-OES, XRD, XPS, and physisorption. It is found that the doped ferric ion is selectively deposited on the TiO2 layer of the catalyst surface without any significant change of the BET specific surface area. XPS spectrum further proves that the doped iron is in trivalent form and mainly distributed on the catalyst surface. The developed catalysts are evaluated in the photo-Fenton degradation on a dye pollutant, Orange II. Complete discoloration and 80% of mineralization can be achieved. A calcination step is required after the photo-doping in order to minimize the iron leaching during the photo-Fenton reaction. © 2009 Elsevier B.V. All rights reserved.
ISSN	1383-5866 2011 Impact Factor: 2.921 2011 SCImago Journal Rankings: 0.157
DOI	http://dx.doi.org/10.1016/j.seppur.2009.03.010
ISI Accession Number ID	WOS:000266641400020
References	References in Scopus

DC Field	Value
dc.contributor.author	Lam, FLY
dc.contributor.author	Hu, X
dc.contributor.author	Lee, TMH
dc.contributor.author	Chan, KY
dc.date.accessioned	2011-03-28T09:23:49Z
dc.date.available	2011-03-28T09:23:49Z
dc.date.issued	2009
dc.description.abstract	A novel technique combining photo-doping and metal-organic chemical vapor deposition (MOCVD) is used to synthesize heterogeneous iron (Fe) catalyst supported on TiO2/SiO2 substrate. The TiO2/SiO2 substrate is obtained through MOCVD method to disperse TiO2 onto silica gel and then iron is coated onto the substrate by photo-doping. The developed catalyst, Fe/TiO2/SiO2, is characterized by various techniques, including ICP-OES, XRD, XPS, and physisorption. It is found that the doped ferric ion is selectively deposited on the TiO2 layer of the catalyst surface without any significant change of the BET specific surface area. XPS spectrum further proves that the doped iron is in trivalent form and mainly distributed on the catalyst surface. The developed catalysts are evaluated in the photo-Fenton degradation on a dye pollutant, Orange II. Complete discoloration and 80% of mineralization can be achieved. A calcination step is required after the photo-doping in order to minimize the iron leaching during the photo-Fenton reaction. © 2009 Elsevier B.V. All rights reserved.
dc.description.nature	link_to_subscribed_fulltext
dc.identifier.citation	Separation And Purification Technology, 2009, v. 67 n. 2, p. 233-237 [How to Cite?] DOI: http://dx.doi.org/10.1016/j.seppur.2009.03.010
dc.identifier.doi	http://dx.doi.org/10.1016/j.seppur.2009.03.010
dc.identifier.epage	237
dc.identifier.hkuros	162410
dc.identifier.isi	WOS:000266641400020
dc.identifier.issn	1383-5866 2011 Impact Factor: 2.921 2011 SCImago Journal Rankings: 0.157
dc.identifier.issue	2
dc.identifier.scopus	eid_2-s2.0-67349136102
dc.identifier.spage	233
dc.identifier.uri	http://hdl.handle.net/10722/132372
dc.identifier.volume	67
dc.language	eng
dc.publisher	Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/seppur
dc.publisher.place	United Kingdom
dc.relation.ispartof	Separation and Purification Technology
dc.relation.references	References in Scopus
dc.subject	Composites
dc.subject	Environment
dc.subject	Photo-Fenton catalysts
dc.subject	Porous media
dc.subject	Remediation
dc.title	A combined technique of photo-doping and MOCVD for the development of heterogeneous photo-Fenton catalyst
dc.type	Article

<?xml encoding="utf-8" version="1.0"?><item><contributor.author>Lam, FLY</contributor.author><contributor.author>Hu, X</contributor.author><contributor.author>Lee, TMH</contributor.author><contributor.author>Chan, KY</contributor.author><date.accessioned>2011-03-28T09:23:49Z</date.accessioned><date.available>2011-03-28T09:23:49Z</date.available><date.issued>2009</date.issued><identifier.citation>Separation And Purification Technology, 2009, v. 67 n. 2, p. 233-237</identifier.citation><identifier.issn>1383-5866</identifier.issn><identifier.uri>http://hdl.handle.net/10722/132372</identifier.uri><description.abstract>A novel technique combining photo-doping and metal-organic chemical vapor deposition (MOCVD) is used to synthesize heterogeneous iron (Fe) catalyst supported on TiO2/SiO2 substrate. The TiO2/SiO2 substrate is obtained through MOCVD method to disperse TiO2 onto silica gel and then iron is coated onto the substrate by photo-doping. The developed catalyst, Fe/TiO2/SiO2, is characterized by various techniques, including ICP-OES, XRD, XPS, and physisorption. It is found that the doped ferric ion is selectively deposited on the TiO2 layer of the catalyst surface without any significant change of the BET specific surface area. XPS spectrum further proves that the doped iron is in trivalent form and mainly distributed on the catalyst surface. The developed catalysts are evaluated in the photo-Fenton degradation on a dye pollutant, Orange II. Complete discoloration and 80% of mineralization can be achieved. A calcination step is required after the photo-doping in order to minimize the iron leaching during the photo-Fenton reaction. &#169; 2009 Elsevier B.V. All rights reserved.</description.abstract><language>eng</language><publisher>Pergamon. The Journal&apos;s web site is located at http://www.elsevier.com/locate/seppur</publisher><relation.ispartof>Separation and Purification Technology</relation.ispartof><subject>Composites</subject><subject>Environment</subject><subject>Photo-Fenton catalysts</subject><subject>Porous media</subject><subject>Remediation</subject><title>A combined technique of photo-doping and MOCVD for the development of heterogeneous photo-Fenton catalyst</title><type>Article</type><description.nature>link_to_subscribed_fulltext</description.nature><identifier.doi>10.1016/j.seppur.2009.03.010</identifier.doi><identifier.scopus>eid_2-s2.0-67349136102</identifier.scopus><identifier.hkuros>162410</identifier.hkuros><relation.references>http://www.scopus.com/mlt/select.url?eid=2-s2.0-67349136102&amp;selection=ref&amp;src=s&amp;origin=recordpage</relation.references><identifier.volume>67</identifier.volume><identifier.issue>2</identifier.issue><identifier.spage>233</identifier.spage><identifier.epage>237</identifier.epage><identifier.isi>WOS:000266641400020</identifier.isi><publisher.place>United Kingdom</publisher.place></item>

Author Affiliations

The University of Hong Kong
Hong Kong Polytechnic University
Hong Kong University of Science and Technology

Article: A combined technique of photo-doping and MOCVD for the development of heterogeneous photo-Fenton catalyst

The HKU Scholars Hub has contact details for these author(s).